It is absolutely true. The two pieces were put in the toolbox to deal with the problems when you had a mismatch in an install so you could get them up and running. Somebody decided if you NEEDED a twistlock to fulfill the installation specs you could assemble this and have one (with NEMA 5-15s on both ends). Fortunately it was stopped right away but a few stores got this cludge in their installation package (where I got these).
